rehabilitation, prolonged rehabilitation involved. >> what about infection? i know from my brief covering of the blasts from the ieds, this is an ied apparently, over in afghanistan and iraq, the soldiers over there, when they get hit with one of these blasts it just throws so much bad stuff, crap if you will, into their system. because it comes from everywhere in the area. is infection a big challenge here for these patients? >> yes, absolutely. that's one of the reasons we wanted to get many of these patients up to the operating room as quickly as possible. so under sterile conditions we could wash out these wounds, remove the foreign debris, the dirt, the grime, the street debris in the wounds, as well as the shrapnel. and, you know, i think with washing them out, the dead -- debriding the dead tissue, removing all of the debris, there's a good chance they can avoid serious infection. yes, infection would be a major risk with these patients. >> tell me about the burn victims. was there any burns involved? i'm not that familiar what happens with a blast. were there burns?